摘要：Connecting gearbox to motor is done by clutch. In order not to transferee all motor power to gearbox suddenly and then to other parts and not make sudden movement in the car, the power must be transferred gradually and this is done by clutch system. In modern cars clutch system is very important and should have specialties such as: possibility of transferring power safely moving car without vibration and enough durability so its analyzing is very important. In this research different parts of clutch system were designed and made and then they were analyzed and week parts were identified. Then week parts were optimized and finally a suitable and durable design was presented
